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Finding the Fourth Proportional to 148,931.49, 205,521.80 and 85,263.87

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Solution

The fourth proportional to 148,931.49, 205,521.80 and 85,263.87 is: 117,662.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,931.49 : 205,521.80 = 85,263.87 : x
  2. Step 2: Convert to fraction form
    148,931.49/205,521.80 = 85,263.87/x
  3. Step 3: Cross multiply
    148,931.49x = 205,521.80 × 85,263.87
  4. Step 4: Simplify right side
    148,931.49x = 17,523,583,611.05
  5. Step 5: Solve for x
    x = 17,523,583,611.05/148,931.49
  6. Step 6: Final answer
    x = 117,662.04

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